package com.akino.gulimall.order.controller;

import com.akino.gulimall.order.service.OrderService;
import com.akino.gulimall.order.vo.OrderConfirmVo;
import com.akino.gulimall.order.vo.OrderSubmitVo;
import com.akino.gulimall.order.vo.SubmitOrderResponseVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import java.util.concurrent.ExecutionException;

/**
 * @author Akino
 * @version 1.0
 */
@Controller
public class OrderWebController {
    @Autowired
    OrderService orderService;

    /**
     * 去结算确认页
     */
    @GetMapping("/toTrade")
    public String toTrade(Model model) throws ExecutionException, InterruptedException {
        // 跳转到订单确认页，展示订单确认的数据
        OrderConfirmVo confirmVo = orderService.confirmOrder();
        model.addAttribute("orderConfirmData",confirmVo);
        return "confirm";
    }
    /**
     * 提交订单，将订单存入数据库
     */
    @PostMapping("/submitOrder")
    public String submitOrder(OrderSubmitVo submitVo,
                              Model model,
                              RedirectAttributes redirectAttributes){
        // 下单：创建订单，验证令牌，验证价格，锁库存
        SubmitOrderResponseVo vo = orderService.submitOrder(submitVo);
        if (vo.getCode()==0){
            // 下单成功：来到支付选择页
            model.addAttribute("submitOrderResp",vo);
            return "pay";
        } else {
            // 下单失败：回到订单确认页，重新确认订单信息
            String msg = "下单失败： ";
            switch (vo.getCode()){
                case 1: msg+="订单信息过期，请刷新再次提交"; break;
                case 2: msg+="订单商品价格发生变化，请确认后再次提交"; break;
                case 3: msg+="商品库存不足"; break;
            }
            redirectAttributes.addFlashAttribute("msg",msg);
            return "redirect:http://order.gulimall.com/toTrade";
        }
    }
}
